CN209954352U

CN209954352U - Surface grinder

Info

Publication number: CN209954352U
Application number: CN201920220714.1U
Authority: CN
Inventors: 朱文红; 蒋小华; 陈少鹏
Original assignee: SHANGHAI DESHUHE METAL PRODUCTION CO Ltd
Current assignee: SHANGHAI DESHUHE METAL PRODUCTION CO Ltd
Priority date: 2019-02-21
Filing date: 2019-02-21
Publication date: 2020-01-17
Anticipated expiration: 2029-02-21

Abstract

The utility model provides a surface grinder, which comprises a magnetic workbench (5), wherein the magnetic workbench (5) forms a first end surface and a second end surface respectively along two end surfaces in the thickness extending direction; a pressure reduction structure is arranged on the magnetic workbench (5), and the pressure reduction structure comprises a pressure reduction groove (8) and/or a pressure reduction hole; the decompression structure penetrates at least the first end face in the depth extending direction; when a plurality of pressure relief structures are present, the plurality of pressure relief structures may be in communication with each other, in part, or not. The utility model discloses in because magnetism table surface only falls the face in some position, consequently when falling face department and realizing the decompression, do not influence the holistic plane degree of whole magnetic worktable, and then do not influence the precision and the machining precision of lathe itself.

Description

Surface grinder

Technical Field

The utility model relates to a grinding machine field specifically, relates to a flat grinder, especially a flat grinder with decompression structure.

Background

Because the surface grinding machine is mainly used for processing the upper and lower large surfaces of the plate, in the grinding processing process, because the plate is subjected to the downward suction force of the magnetic workbench and the downward extrusion force formed in the grinding wheel processing process, a pressure difference is formed between the upper plane and the lower plane of the plate, and the plate is tightly attached to the surface of the magnetic workbench and is difficult to remove.

In this case, a safer method is usually used to fix the surface of the plate member by using a magnet and to suspend the plate member away from the surface of the work table by using an upward traction force of a lifting device.

Problem one, the effective thickness of the magnetic table of the grinding machine is usually 25-30mm, and this often causes the deformation of the table itself to cause machining errors, which are fatal in precision machining.

The second problem is that the whole grinding machine working table and even the grinding machine body can be lifted away from the original position due to the size of the workpiece, which is very unsafe.

Patent document CN203409650U provides a grinding machine, in which a permanent magnetic chuck adopts a magnetic table formed by a disk kick and a plurality of permanent magnets, so as to fix and detach the workpiece, but the grinding machine provided by the patent document is complex in structure and cannot solve the problem that the plate deforms when being subjected to a downward external force.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a flat grinder.

According to the utility model provides a surface grinding machine, include the magnetic worktable, the magnetic worktable forms first terminal surface and second terminal surface respectively along two terminal surfaces on the thickness extending direction;

a pressure reduction structure is arranged on the magnetic workbench and comprises a pressure reduction groove and/or a pressure reduction hole; the decompression structure penetrates at least the first end face in the depth extending direction;

when a plurality of pressure relief structures are present, the plurality of pressure relief structures may be in communication with each other, in part, or not.

Preferably, the relief groove extends along any one or more of the following paths: the length extension direction of the magnetic workbench, the width extension direction of the magnetic workbench, the oblique direction and the arc direction.

Preferably, the plurality of pressure relief vents comprise openings having any one or more of the following cross-sectional shapes: polygonal, circular, elliptical, semi-circular.

Preferably, the pressure relief vent comprises a balance vent and/or a jacking vent;

the balance holes penetrate or do not penetrate through the second end face in the depth extending direction; the jacking hole also penetrates through the second end face in the depth extending direction.

Preferably, the jacking hole is provided with a jacking mechanism, and the jacking mechanism comprises an air pressure source and/or a mechanical jacking piece;

the axial position of the mechanical jacking piece is adjustably arranged in the jacking hole.

Preferably, the depth of the pressure relief structure is within 1 mm.

Preferably, the polishing device also comprises a polishing piece; a processing space is formed outside the first end face, and a processed piece arranged in the processing space is adsorbed on the first end face through magnetic force;

the grinding piece can grind a processed piece, and the processed piece at least covers a decompression structure.

Preferably, the grinding part comprises a grinding wheel, and the grinding wheel is provided with a rotating shaft and a displacement adjusting mechanism;

the grinding wheel, the rotating shaft and the displacement adjusting mechanism are sequentially connected;

and the displacement adjusting mechanism drives the grinding wheel to move along the length extension direction of the magnetic workbench.

Preferably, the grinding machine further comprises a grinding machine body, and the magnetic workbench is fixedly arranged on the grinding machine body; alternatively, the first and second electrodes may be,

the magnetic workbench is arranged on the grinding machine main body through the arranged sliding structure and/or the height adjusting structure.

Preferably, the decompression groove penetrates through the end face of the magnetic workbench in the length extension direction;

and a tapered wedge structure is slidably arranged in the pressure reduction groove.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in because magnetism table surface only falls the face in some position, consequently when falling face department and realizing the decompression, do not influence the holistic plane degree of whole magnetic worktable, and then do not influence the precision and the machining precision of lathe itself.

2. The upper and lower pressure difference of the workpiece in a demagnetizing state after the machining on the magnetic workbench can be effectively reduced, and the plate can be conveniently removed by operators.

3. The utility model discloses in can peel off the plate from the magnetic worktable with very little power just easily, reduced the deformation of external force to the magnetic table face of grinding machine, destroy, also avoided the hidden danger that is aroused by the hoist of mesa or lathe.

4. The deformation and the damage of the magnetic table-board are avoided, so that the equipment can work under the more stable condition, the maintenance cost is reduced, and meanwhile, the equipment can work more efficiently.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the surface grinding machine provided by the present invention.

The figures show that:

magnetic working table 5 of rotating shaft 1

Grinding wheel 2 grinding machine body 6

Differential pressure direction 3 displacement adjusting mechanism 7

Decompression groove 8 of machined workpiece 4

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The utility model provides a surface grinder, which comprises a magnetic workbench 5, wherein the magnetic workbench 5 forms a first end surface and a second end surface respectively along two end surfaces in the thickness extending direction; a pressure reduction structure is arranged on the magnetic workbench 5, and the pressure reduction structure comprises a pressure reduction groove 8 and/or a pressure reduction hole; the decompression structure penetrates at least the first end face in the depth extending direction; when a plurality of pressure relief structures are present, the plurality of pressure relief structures may be in communication with each other, in part, or not. As shown in fig. 1, the first end surface, i.e., the end surface on which the magnetic table 5 is located, is located at the upper end, a processing space is formed outside the first end surface, and the workpiece 4 placed in the processing space is attracted to the first end surface by magnetic force.

For the relief groove 8, it may extend in any one or more of the following ways: the length extension direction of the magnetic worktable 5, the width extension direction of the magnetic worktable 5, the oblique direction and the arc direction. For the pressure relief vent, the plurality of pressure relief vents include openings having any one or more of the following cross-sectional shapes: polygonal, circular, elliptical, semi-circular. That is, the pressure relief structure is substantially a local depressed surface on the first end surface having an overall planar shape. Preferably, the depth of the pressure relief structure is within 1 mm. In practical application, the workpiece 4 covers at least one pressure reducing structure, so that the fixing effect of the magnetic workbench 5 on the workpiece 4 is not influenced, and meanwhile, the pressure is reasonably reduced, so that the vacuum contact surface of the workpiece 4, such as the lower surface of a plate, and the magnetic workbench 5 is reduced to an ideal range, and the plate can be conveniently moved away from the surface of the magnetic workbench 5 after the machining is finished.

Preferably, the pressure relief vent comprises a balance vent and/or a jacking vent; the balance holes penetrate or do not penetrate through the second end face in the depth extending direction; the jacking hole also penetrates through the second end face in the depth extending direction. The balance hole, in which the gas pressure is equal to the gas pressure on the upper side of the plate, serves only to reduce the contact surface of the plate with the magnetic table 5, and does not generate a force opposite to the pressure difference direction 3 in fig. 1. For the jacking holes, as the magnetic workbench 5 penetrates along the thickness direction, a jacking mechanism can be arranged, and the jacking mechanism comprises an air pressure source and/or a mechanical jacking piece. It will be appreciated that for a source of air pressure, an internal pressure greater than atmospheric pressure may be created in the lift hole, thereby creating a force that pushes the work piece 4 upward. And mechanical jacking piece axial position is adjustable installs in the jacking hole, and mechanical jacking piece is direct to be contacted with work piece 4 and can upwards jack work piece 4. The mechanical jacking part is selected in various ways, and can be a structure capable of generating linear displacement, such as a threaded structure, a hydraulic cylinder, a pneumatic cylinder, a linear motor and the like.

Preferably, the decompression groove 8 penetrates through the end face of the magnetic table 5 in the length extending direction; and a wedge structure is arranged in the pressure reduction groove 8 in a sliding manner. After the machining is completed, the tapered wedge structure is inserted into the relief groove 8 below the workpiece 4, and the workpiece 4 can be lifted up from both ends of the workpiece 4 in the longitudinal direction by the slope. It is of course further preferable that the relief groove 8 is an end surface extending through the magnetic table 5 in the width direction, and similarly, the work material 4 can be lifted by using a wedge structure.

As shown in fig. 1, the surface grinding machine further includes a grinding member capable of grinding the work material 4. In the embodiment, the grinding part comprises a grinding wheel 2, and the grinding wheel 2 is provided with a rotating shaft 1 and a displacement adjusting mechanism 7; the grinding wheel 2, the rotating shaft 1 and the displacement adjusting mechanism 7 are sequentially connected; the displacement adjusting mechanism 7 drives the grinding wheel 2 to move along the length extending direction of the magnetic workbench 5. The surface grinding machine also comprises a grinding machine main body 6, and the magnetic workbench 5 is fixedly arranged on the grinding machine main body 6; alternatively, the magnetic table 5 is mounted to the grinding machine body 6 by means of a sliding structure and/or a height adjusting structure provided.

Preferred embodiments:

1. grinding the surface of a magnetic worktable 5 of the surface grinding machine;

2. processing transverse, longitudinal, oblique, rhombic and other grooves in a conventional working area of the magnetic worktable 5;

3. in order to prevent the plate from deforming when being subjected to downward external force, the depth of the groove is recommended to be controlled within 1 mm;

4. processing the plate to meet the processing requirement;

5. and hoisting the plate by using a hoisting mechanism.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A surface grinding machine is characterized by comprising a magnetic workbench (5), wherein a first end surface and a second end surface are respectively formed on two end surfaces of the magnetic workbench (5) along the thickness extension direction;

a pressure reduction structure is arranged on the magnetic workbench (5), and the pressure reduction structure comprises a pressure reduction groove (8) and/or a pressure reduction hole; the decompression structure penetrates at least the first end face in the depth extending direction;

2. A surface grinding machine according to claim 1, characterised in that the relief groove (8) extends in any one or more of the following ways: the length extension direction of the magnetic workbench (5), the width extension direction of the magnetic workbench (5), the oblique direction and the arc direction.

3. The surface grinding machine of claim 1, wherein the plurality of relief holes comprise openings having any one or more of the following cross-sectional shapes: polygonal, circular, elliptical, semi-circular.

4. The surface grinding machine of claim 1, wherein the relief holes comprise balancing holes and/or jacking holes;

5. The surface grinding machine of claim 4, characterized in that the jacking holes are provided with jacking mechanisms, which comprise air pressure sources and/or mechanical jacking members;

6. The surface grinding machine of claim 1, wherein the relief structure is within 1mm deep.

7. The surface grinding machine of claim 1, further comprising a grinding member; a processing space is formed outside the first end face, and a processed workpiece (4) arranged in the processing space is adsorbed on the first end face through magnetic force;

the grinding piece can grind the processed piece (4), and the processed piece (4) at least covers one pressure reducing structure.

8. A surface grinding machine as claimed in claim 7, characterised in that the grinding element comprises a grinding wheel (2), the grinding wheel (2) being provided with a rotary shaft (1) and a displacement adjusting mechanism (7);

the grinding wheel (2), the rotating shaft (1) and the displacement adjusting mechanism (7) are sequentially connected;

and the displacement adjusting mechanism (7) drives the grinding wheel (2) to move along the length extension direction of the magnetic workbench (5).

9. A surface grinding machine as claimed in claim 1, characterised by further comprising a grinding machine body (6), said magnetic table (5) being mounted fast on the grinding machine body (6); alternatively, the first and second electrodes may be,

the magnetic workbench (5) is arranged on the grinding machine main body (6) through a sliding structure and/or a height adjusting structure.

10. The surface grinding machine according to claim 1, characterized in that the relief groove (8) penetrates the end surface of the magnetic table (5) in the length extension direction;

and a wedge structure is arranged in the pressure reduction groove (8) in a sliding manner.